question_answer

Dacron is obtained by the condensation polymerisation of:

A)  Dimethyl terephthalate and ethylene glycol

B)  Terephthalic acid and formaldehyde

C)  Phenol and phthalic acid

D)  Phenol and formaldehyde

Correct Answer: A

Solution :

Dacron or terylene is a condensation polymer (a polyester) of ethylene glycol and terephthalic acid. Generally dimethyl terephthalate   is   used   inspite   of terephthalic acid.